Diy Oil Change Pit. •the most durable and best quality quick lube pit covers in the industry. I'll send you a picture if you like.
If i'm doing anything that releases volatile fumes in the garage i have a squirrel cage blower blowing through the pit (and i don't light matches). The pit will be used as often as i can to work on my car and for friends and family to use as well. This is a bit of a slick money saver..
The walk on style is available as a push pull style which is hand walked from one end of the pit to the other.
I have wanted one for more than 35 years and just might make it happen this winter when the temp goes down a little more. Always replace the drain plug gasket (copper ring) when changing oil. Toasty it was a consideration (plenty of images on youtube of exactly the thing you describe), under the pit is a perforated drain falling into a sump, also half way up around the outside of the pit walls is the same thing in a hope of channeling any water pressure away from lifting the pit. Captain dipshit ended up spilling about half a quart of oil all over the engine bay when filling the oil back up.